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1084445145 = 33571147561
BaseRepresentation
bin100000010100011…
…0101000111011001
32210120120112002000
41000220311013121
54210104221040
6255335231213
735605426440
oct10050650731
92716515060
101084445145
11507160763
12263218509
13143895924
14a404dd57
1565312130
hex40a351d9

1084445145 has 32 divisors (see below), whose sum is σ = 2203319040. Its totient is φ = 495745920.

The previous prime is 1084445119. The next prime is 1084445161. The reversal of 1084445145 is 5415444801.

It is not a de Polignac number, because 1084445145 - 26 = 1084445081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 572836 + ... + 574725.

It is an arithmetic number, because the mean of its divisors is an integer number (68853720).

Almost surely, 21084445145 is an apocalyptic number.

1084445145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1084445145 is an abundant number, since it is smaller than the sum of its proper divisors (1118873895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1084445145 is a wasteful number, since it uses less digits than its factorization.

1084445145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147582 (or 1147576 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 1084445145 is about 32930.9147306904. The cubic root of 1084445145 is about 1027.3912506782.

Adding to 1084445145 its reverse (5415444801), we get a palindrome (6499889946).

The spelling of 1084445145 in words is "one billion, eighty-four million, four hundred forty-five thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 1147561 3442683 5737805 8032927 10328049 17213415 24098781 30984147 40164635 51640245 72296343 120493905 154920735 216889029 361481715 1084445145